2011202121 has 8 divisors (see below), whose sum is σ = 2685979840. Its totient is φ = 1338612912.

The previous prime is 2011202111. The next prime is 2011202131. The reversal of 2011202121 is 1212021102.

It is an interprime number because it is at equal distance from previous prime (2011202111) and next prime (2011202131).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2011202121 - 2¹⁵ = 2011169353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011202097 and 2011202106.

It is not an unprimeable number, because it can be changed into a prime (2011202101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544981 + ... + 548658.

It is an arithmetic number, because the mean of its divisors is an integer number (335747480).

Almost surely, 2^2011202121 is an apocalyptic number.

It is an amenable number.

2011202121 is a deficient number, since it is larger than the sum of its proper divisors (674777719).

2011202121 is a wasteful number, since it uses less digits than its factorization.

2011202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094255.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2011202121 is about 44846.4281855311. The cubic root of 2011202121 is about 1262.2689697307.

Adding to 2011202121 its reverse (1212021102), we get a palindrome (3223223223).

The spelling of 2011202121 in words is "two billion, eleven million, two hundred two thousand, one hundred twenty-one".